 The day created in 2010, social media has become a huge part of our lives. It's a way we stay connected with family and friends and learn what's going on in the world. If they had social media back in 1857, someone would have posted a review of the first reading by famed author Charles Dickens of his soon-to-be classic, A Christmas Carol at St. Martin's Hall in London. Or share an opinion for Alfred Hitchcock's film Psycho, which opened on this day in 1960.